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212314 (2005 QU42)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212314
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475618038383958 6.3319e-08  
a 3.219132602630134 3.6644e-08 au
q 2.744111588991041 2.0003e-07 au
i 5.218176651642192 7.5739e-06 deg
node 18.40241788220889 5.4632e-05 deg
peri 315.2492218648256 5.895e-05 deg
M 240.9268074021043 2.5957e-05 deg
tp 2459898.279528611266
(2022-Nov-14.77952861)
0.00015996 TDB
period 2109.632107945134
5.78
3.6022e-05
9.862e-08
d
yr
n .1706458669472254 2.9137e-09 deg/d
Q 3.694153616269227 4.2051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:01:50  

Additional Information
 Earth MOID = 1.73557 au 
 Jupiter MOID = 1.69983 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457127.5 (2015-Apr-15.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458640867438949 6.3342e-08  
q 2.750487257857636 1.999e-07 au
tp 2457787.779385938396
(2017-Feb-03.27938594)
0.00013951 TDB
node 18.44090653591914 5.4631e-05 deg
peri 315.3587899956977 5.904e-05 deg
i 5.217385135106464 7.5718e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:01:50  

Additional Information
 Jupiter MOID = 1.69983 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.012261876480706E-15 -1.251357910221201E-14 4.196876756814071E-12 5.859939657488229E-15 6.077399791332749E-13 8.645933804598315E-16
q -1.251357910221201E-14 3.995806579662245E-14 -1.122247068296857E-11 -2.127605200443534E-14 -1.637199931616364E-12 1.032067376849602E-15
tp 4.196876756814071E-12 -1.122247068296857E-11 1.94628453756705E-8 1.150592413883001E-11 3.130437286021922E-9 2.584222015255098E-12
node 5.859939657488229E-15 -2.127605200443534E-14 1.150592413883001E-11 2.984522216530833E-9 -2.969860841084895E-9 -6.233454841504168E-11
peri 6.077399791332749E-13 -1.637199931616364E-12 3.130437286021922E-9 -2.969860841084895E-9 3.485684212652559E-9 6.244352775060039E-11
i 8.645933804598315E-16 1.032067376849602E-15 2.584222015255098E-12 -6.233454841504168E-11 6.244352775060039E-11 5.733172890761524E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.97   n/a E2020-QN2  

212314 (2005 QU42)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 QU42 = 1999 RH254 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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